import { LdapConfiguration } from "../../src/lib/configuration/Configuration";
import { Client } from "../../src/lib/ldap/Client";
import { LdapClientFactoryStub } from "../mocks/ldap/LdapClientFactoryStub";
import { LdapClientStub } from "../mocks/ldap/LdapClientStub";

import Sinon = require("sinon");
import BluebirdPromise = require("bluebird");
import Assert = require("assert");
import Winston = require("winston");

describe("test authelia ldap client", function () {
  const USERNAME = "username";
  const ADMIN_USER_DN = "cn=admin,dc=example,dc=com";
  const ADMIN_PASSWORD = "password";

  it("should replace {0} by username when searching for groups in LDAP", function () {
    const options: LdapConfiguration = {
      url: "ldap://ldap",
      users_dn: "ou=users,dc=example,dc=com",
      users_filter: "cn={0}",
      groups_dn: "ou=groups,dc=example,dc=com",
      groups_filter: "member=cn={0},ou=users,dc=example,dc=com",
      group_name_attribute: "cn",
      mail_attribute: "mail",
      user: "cn=admin,dc=example,dc=com",
      password: "password"
    };
    const factory = new LdapClientFactoryStub();
    const ldapClient = new LdapClientStub();

    factory.createStub.returns(ldapClient);
    ldapClient.searchAsyncStub.returns(BluebirdPromise.resolve([{
      cn: "group1"
    }]));
    const client = new Client(ADMIN_USER_DN, ADMIN_PASSWORD, options, factory, Winston);

    return client.searchGroups("user1")
      .then(function () {
        Assert.equal(ldapClient.searchAsyncStub.getCall(0).args[1].filter,
          "member=cn=user1,ou=users,dc=example,dc=com");
      });
  });

  it("should replace {dn} by user DN when searching for groups in LDAP", function () {
    const USER_DN = "cn=user1,ou=users,dc=example,dc=com";
    const options: LdapConfiguration = {
      url: "ldap://ldap",
      users_dn: "ou=users,dc=example,dc=com",
      users_filter: "cn={0}",
      groups_dn: "ou=groups,dc=example,dc=com",
      groups_filter: "member={dn}",
      group_name_attribute: "cn",
      mail_attribute: "mail",
      user: "cn=admin,dc=example,dc=com",
      password: "password"
    };
    const factory = new LdapClientFactoryStub();
    const ldapClient = new LdapClientStub();

    factory.createStub.returns(ldapClient);

    // Retrieve user DN
    ldapClient.searchAsyncStub.withArgs("ou=users,dc=example,dc=com", {
      scope: "sub",
      sizeLimit: 1,
      attributes: ["dn"],
      filter: "cn=user1"
    }).returns(BluebirdPromise.resolve([{
      dn: USER_DN
    }]));

    // Retrieve groups
    ldapClient.searchAsyncStub.withArgs("ou=groups,dc=example,dc=com", {
      scope: "sub",
      attributes: ["cn"],
      filter: "member=" + USER_DN
    }).returns(BluebirdPromise.resolve([{
      cn: "group1"
    }]));

    const client = new Client(ADMIN_USER_DN, ADMIN_PASSWORD, options, factory, Winston);

    return client.searchGroups("user1")
      .then(function (groups: string[]) {
        Assert.deepEqual(groups, ["group1"]);
      });
  });

  it("should retrieve mail from custom attribute", function () {
    const USER_DN = "cn=user1,ou=users,dc=example,dc=com";
    const options: LdapConfiguration = {
      url: "ldap://ldap",
      users_dn: "ou=users,dc=example,dc=com",
      users_filter: "cn={0}",
      groups_dn: "ou=groups,dc=example,dc=com",
      groups_filter: "member={dn}",
      group_name_attribute: "cn",
      mail_attribute: "custom_mail",
      user: "cn=admin,dc=example,dc=com",
      password: "password"
    };
    const factory = new LdapClientFactoryStub();
    const ldapClient = new LdapClientStub();

    factory.createStub.returns(ldapClient);

    // Retrieve user DN
    ldapClient.searchAsyncStub.withArgs("ou=users,dc=example,dc=com", {
      scope: "sub",
      sizeLimit: 1,
      attributes: ["dn"],
      filter: "cn=user1"
    }).returns(BluebirdPromise.resolve([{
      dn: USER_DN
    }]));

    // Retrieve email
    ldapClient.searchAsyncStub.withArgs("cn=user1,ou=users,dc=example,dc=com", {
      scope: "base",
      sizeLimit: 1,
      attributes: ["custom_mail"],
    }).returns(BluebirdPromise.resolve([{
      custom_mail: "user1@example.com"
    }]));

    const client = new Client(ADMIN_USER_DN, ADMIN_PASSWORD, options, factory, Winston);

    return client.searchEmails("user1")
      .then(function (emails: string[]) {
        Assert.deepEqual(emails, ["user1@example.com"]);
      });
  });
});